Ball speed is the key to extra distance. Additional yardage can be achieved either through added clubhead speed -- a difficult proposition for most golfers -- or through added ball speed. For the HX Hot Golf Ball, Callaway Golf design engineers focused on finding ways to increase ball speed while adhering to United States Golf Association (USGA) rules limiting initial ball velocity. They came up with a ball that rockets off the clubface at impact, achieves major hang time due to the revolutionary and now enhanced HEX Aerodynamics, and has superior feel because of the super-soft boundary layer between its hot core and aerodynamic cover.

The new HX Hot Golf Ball boasts significant improvements over traditional 2-piece distance offerings. The new, highly resilient core -- essentially the ball's engine -- is super-fast, and kick starts a chain reaction that produces explosiveness off the clubface. The revolutionary HEX Aerodynamics on the cover also are improved, with the hexagons and pentagons optimized to reduce drag, increase lift and maximize distance.

Golf ball designers will tell you the essence of a ball's performance lies in the interaction between its layers. In creating the HX Hot, Callaway Golf engineers successfully added feel to a distance ball by separating the high resilience core from its fast cover with a soft, thin boundary layer that reacts like rubber -- interacting at impact with the cover to ignite velocity while maintaining feel. The ball flies fast off the face and goes long -- really long.

The cover of the HX Hot Golf Ball also has been improved to reduce spin off the driver for a penetrating trajectory. Like other balls in the HX family, the HX Hot has 332 geometries on the cover, blanketing the surface of the ball with 100% coverage -- unheard of in competitors' golf balls and critical to the superior flight properties and overall performance of the HX Hot Golf Ball. Achieving 100% surface coverage allows Callaway Golf engineers to tune lift and drag properties of the ball in order to reduce distance-robbing initial drag and increase length-promoting lift during flight.